


Dwyer Instruments TR-7-AX | Ground Continuity Control with 72" cable | Stud type contactor
A Safe-T-Ground component made for dangerous environments is the Dwyer TR-7-AX. The device functions between -13 and 104°F and needs a power source between 105 and 125 VAC. Explosion-proof protection is ensured by the 356-T6 cast aluminum alloy casing. It has a 3/4" NPT conduit connector and a 10 amp DPDT electrical rating at 125 VAC. It includes a terminal strip for wiring and is 6-5/8" W x 10-3/8" H x 5-5/8" D. An additional grounding stud can be ordered in addition to what is given. The contactor is a 16-2 type SO coiled wire with a 16' maximum extension that is attached to a molded plastic clamp that has beryllium copper contact clips.

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- Specifications
- Features
- Downloads
Component | Ground Control |
Connection | Conduit: 3/4" NPT |
Current Rating | DPDT, 10 amps, 125 VAC, 60 Hz contact rating |
Housing | 356-T6 cast aluminum alloy (copper free), explosion-proof - Class I, Group D |
Installation | 7/16" mounting lugs, integrally cast |
Manufacturer | Dwyer Instruments |
Power | 105-125 VAC 60 Hz 7.75 watts - with light, 1.75 watts - without lights. Optional 220-240 VAC, 50/60 Hz |
Size | 6-5/8" W x 10-3/8" H x 5-5/8" D |
Supply Voltage AC | Instrument Sensor: 105-125 VAC |
Supply Voltage AC | Instrument Sensor: 220-240 VAC |
Temp Range | Instrument Sensor: -13 - 104°F/-25 - 40°C |
Temperature | Temperature Limits: -13 to 104°F (-25 to 40°C) |
Weight (for shipping) | 20 lb with contactor and cord |
- Housing that is safe against explosions.
- An audible alert and LED status lights.
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